How to mount my own image based on Linux for Tiny4412 Exynos

Hi,

I already looked deep in web, but didn't find something really helpful. So,
I need to know: How to mount my own image based on Linux for Tiny4412
Exynos.

I'm using Buildroot to mount my Linux based image, but it doesn't generate
.img format. Whenever I try to Install any image on Tiny4412SDK1308 I have
this error message:

"Installing fs-image failed"

I've tried lots of images format (ext2, ext4, jssf2, tar), and get always
the same result.

Thanks in advance!